[Q&A Question 092] 2016.07.21
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【Q&A Question 092】July 21, 2016: What tasks should be carried out before servicing the lubricating oil cooler of the new hydrogen machine? The answer key will be available after responding; scoring is based on answering the key points. 1. Stop the auxiliary oil pump. 2. Isolate the oil and water circuits. 3. Connect the oil tank to collect oil. 4. Drain water for drainage; disassemble the oil cooler for maintenance.
1. Close the valves connecting the oil cooler to the system (including the oil system and the return tank)； 2. Close the cooling water valve. 3. Drain oil from the oil cooler (make sure to recover it) and drain water
1. Stop the auxiliary oil pump. 2. Isolate the oil and water circuits. 3. Connect the oil tank to collect oil. 4. Drain water for drainage; disassemble the oil cooler for maintenance.
Return the oil! Nitrogen purge! Get the spare parts ready!
Familiarize with the drawings, prepare spare parts and tools, and carry out lifting
The lubricating oil in the cooler has been drained; the inlet and outlet valves for cooling water are closed; drainage is completed; gaskets for all relevant areas are ready